it becomes a target-rich environment for thieves. >> ama: this year the holiday shopping season is starting even earlier. at least two major retailers, sears and wal-mart, are going to open on thanksgiving. >> a new study says climate change has the wild coffee plant headed for extinction as soon as the year 2080. scientist in london ran computer models on global warning. the scientists say if their worst estimates come true in 68 years there would be nowhere on earth suit even for wild coffee growth. it could mean stinks of even beans grown on farms. >> two bay area teenagers are about to take on the nation in competition of wits, intelligence and inning -- inning future. >> thomas and joey made it to the national finals in map sciences and technology. the pair advanced for their research that could help improve the treatment and prevention of lung cancer, and not only are the students start, they're positive. >> you always miss 100% of the shots you don't take, so take a shot and then become part of this wonderful experience where you learn from your peers who are part of the same revetch